As we reported yesterday, Wall Street employees still favor big name banks like Goldman Sachs and JPMorgan, even if boutiques are catching up. And despite all the rhetoric, bankers on the whole rate their employers rather glowingly, particularly since new work rules have been put in place for junior employees.

But of course there are still those who have their concerns, no matter how highly rated the bank. What are they saying? We got a special look into the database of Vault.com to hear the latest grumblings from employees at their four top rated banks, as judged by employees: Blackstone Group, Goldman Sachs, Morgan Stanley and JPMorgan.

Below are reviews from bankers who rated their company worse than most any of their colleagues, based on Vault’s five-star ranking system. To be clear, we are admittedly cherry picking. For every one of these reviews are dozens that are rosy. After all, they are the highest-rated banks. But the reviews may give you a look into a potential drawback at each firm, depending on the business unit.

We ignored old reviews and those that touch on the hours or work-life balance, as those are things bankers deal with at all firms. We also didn’t include any that didn’t say something of substance. As you’ll see, technology workers seem to be the least content people on Wall Street.

Blackstone

“If you are looking for mediocre pay and boring work with unappreciative users, come work at Blackstone as a software developer.”

“There is no respect or compensation given for going above and beyond to improve the culture here unless it is in your job description.” – technology professional

“Year-end review process, which includes a bell curve. This doesn’t often work out fairly, especially with high-performing teams where nobody should be classified in the middle or bottom.” – technology professional.